Bug 7570 - Add Item availability status to cart.

Bug 7570 - Add Item availability status to cart.

    Added Item availability status to cart(Location table cell).

Changes:
-opac/opac-basket.pl:
Added code to show In transmit status and modified @items to call "GetItemsInfo" instead of "GetItemsLocationInfo" to get accurate avalibility status.
-koha-tmpl/opac-tmpl/prog/en/modules/opac-basket.tt:
Added code for showing availibility staus in opac-basket page and in  "More details" link.

Test Cases:
-Add records to your cart with different cases like 1 record with  different Item status(Lost,Avaliable,Withdrawn,etc).
-Click on your cart and see the results in a new window.
-Click on "More details" link and check the results.

Signed-off-by: Michael Davis <m.r.davis@cranfield.ac.uk>